Greece says its entire electrical grid ran on 100% renewables for the first time
Renewable energy sources covered Greece's electricity demands for about five hours last Friday, the operator of the country's power grid said.
Duke Energy says it posted a 20% increase in wind and solar power last year.
Duke Energy says it's on track to stop generating electricity with coal by 2035. That includes the Belews Creek site in Stokes County, one of its largest plants.
The town of Boone is hitting some of its climate goals eight years ahead of schedule.